TargetZoom.cs
// Copyright 2012 ESRI // // All rights reserved under the copyright laws of the United States // and applicable international laws, treaties, and conventions. // // You may freely redistribute and use this sample code, with or // without modification, provided you include the original copyright // notice and use restrictions. // // See the use restrictions. // using System; using ESRI.ArcGIS.Analyst3D; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.ADF.BaseClasses; using ESRI.ArcGIS.ADF.CATIDs; using System.Runtime.InteropServices; namespace sceneTools { [ClassInterface(ClassInterfaceType.None)] [Guid("6104E022-3859-4d89-9BEF-984375BA41F9")] public sealed class TargetZoom : BaseTool { #region COM Registration Function(s) [ComRegisterFunction()] [ComVisible(false)] static void RegisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType); // // TODO: Add any COM registration code here // } [ComUnregisterFunction()] [ComVisible(false)] static void UnregisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType); // // TODO: Add any COM unregistration code here // } #region ArcGIS Component Category Registrar generated code /// <summary> /// Required method for ArcGIS Component Category registration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryRegistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Register(regKey); } /// <summary> /// Required method for ArcGIS Component Category unregistration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryUnregistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Unregister(regKey); } #endregion #endregion private System.Windows.Forms.Cursor m_pCursor; private ISceneHookHelper m_pSceneHookHelper; public TargetZoom() { base.m_category = "Sample_SceneControl(C#)"; base.m_caption = "Target Zoom"; base.m_toolTip = "Zoom to Target"; base.m_name = "Sample_SceneControl(C#)/TargetZoom"; base.m_message = "Zoom to selected target"; //Load resources string[] res = GetType().Assembly.GetManifestResourceNames(); if(res.GetLength(0) > 0) { base.m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream("sceneTools.TargetZoom.bmp")); } m_pCursor = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.targetzoom.cur")); m_pSceneHookHelper = new SceneHookHelperClass (); } public override bool Enabled { get { if(m_pSceneHookHelper.Scene == null) return false; else return true; } } public override void OnCreate(object hook) { m_pSceneHookHelper.Hook = hook; } public override int Cursor { get { return m_pCursor.Handle.ToInt32(); } } public override bool Deactivate() { return true; } public override void OnMouseUp(int Button, int Shift, int X, int Y) { //Get the scene graph ISceneGraph pSceneGraph = (ISceneGraph) m_pSceneHookHelper.SceneGraph; IPoint pNewTgt; object pOwner, pObject; //Translate screen coordinates into a 3D point pSceneGraph.Locate(pSceneGraph.ActiveViewer, X, Y, esriScenePickMode.esriScenePickAll, true, out pNewTgt, out pOwner, out pObject); if(pNewTgt == null) return; //Get the scene viewer's camera ICamera pCamera = (ICamera) m_pSceneHookHelper.Camera; //If orthographic (2D) type if(pCamera.ProjectionType == esri3DProjectionType.esriOrthoProjection ) { //Set the camera's new target and zoom in pCamera.Target = pNewTgt; pCamera.Zoom(0.25); //Redraw the scene viewer pSceneGraph.ActiveViewer.Redraw(true); } else { //Get the camera's old target and observer IPoint pOldTgt = (IPoint) pCamera.Target; IPoint pOldObs = (IPoint) pCamera.Observer; //Set the camera's new target and get the new observer pCamera.Target = pNewTgt; pCamera.PolarUpdate(0.1, 0, 0, true); IPoint pNewObs = (IPoint) pCamera.Observer; //Get the duration in seconds of last redraw //and the average number of frames per second double dlastFrameDuration, dMeanFrameRate; pSceneGraph.GetDrawingTimeInfo(out dlastFrameDuration, out dMeanFrameRate); if(dlastFrameDuration < 0.01) dlastFrameDuration = 0.01; int iSteps; iSteps = (int) (2 / dlastFrameDuration); if(iSteps < 1) iSteps = 1; if(iSteps > 60) iSteps = 60; double dxObs, dyObs, dzObs; double dxTgt, dyTgt, dzTgt; dxObs = (pNewObs.X - pOldObs.X) / iSteps; dyObs = (pNewObs.Y - pOldObs.Y) / iSteps; dzObs = (pNewObs.Z - pOldObs.Z) / iSteps; dxTgt = (pNewTgt.X - pOldTgt.X) / iSteps; dyTgt = (pNewTgt.Y - pOldTgt.Y) / iSteps; dzTgt = (pNewTgt.Z - pOldTgt.Z) / iSteps; //Loop through each step moving the camera's observer and target from the //old positions to the new positions, refreshing the scene viewer each time for(int i=0; i < iSteps; i++) { pNewObs.X = pOldObs.X + (i * dxObs); pNewObs.Y = pOldObs.Y + (i * dyObs); pNewObs.Z = pOldObs.Z + (i * dzObs); pNewTgt.X = pOldTgt.X + (i * dxTgt); pNewTgt.Y = pOldTgt.Y + (i * dyTgt); pNewTgt.Z = pOldTgt.Z + (i * dzTgt); pCamera.Observer = pNewObs; pCamera.Target = pNewTgt; pSceneGraph.ActiveViewer.Redraw(true); } } } } }